Float valve



Patented Aug. 10, 1943 j UNITED 75mm 'rLoATvALvsf- St eveL. Martin,lvleriar'd,"ll ex;f I

' ApplicatiOn Ja uaryialeii, se iainoisvasss lclaini. (c1. l37 1 04); lif This invention relates to valves, and more particularly to an improvedfloat valve for use in conjunction with commode's, and inotherapplications,

One object of the invention is to provide float valve which is 'of suchconstructionthat it:

will'be instantly operative, upon lowering, of raising of a float, forturning on or. shutting ofi instantaneously the supply of water to acommode tank.

Another object of the invention is to provide a valve of this characterhaving avalve plunger formed with a relatively large slot in which isloosely mounted the operating lever, said loose mounting assuringinstantaneous movement of the-valve to open orclosed position,

A further object of the invention is to [provide a float valvewhich'will be noiseless'in operation. 1 7

'A still further object of the invention is to provide a device of thischaracterwhich'is' characterized by the utmost simplicity and which will'be highly efficient in use. i

' Other objects of the invention, not mentioned hereinbefore, willbecome apparent during the course of the following description. 1

In the drawing forming a part of my application: 1 gure lis a plan view,partly in'sectiomshowing 'my'improved'float valve as it would appearinstalled in a commode tank, a I

Figure 2 is an enlarged vertical sectional view of the float valve, and

Figure 3 is an enlarged detail perspective View of the valve elementemployed, and showing particularly the enlarged slot in the plunger ofsaid valve element. 7 5

Referring now more particularly to the accompanying drawing wherein likenumerals of reference will be seen to designate like parts throughoutthe several views, the numeral l indicates in general the commode tankwhich is of conventional construction. The tank Iis provided with acover 2 and an operating-lever 3. The bottom wall of the tank is shownat 3,-.

My improved float valve include is shown generally at 5, said bodyincluding an upper section 6 and a lower section "I, said lower sectioni having a threaded portion 8 which receives' an externally threadednipple 9 on the sec-J tion 6 for retaining the sections in proper.cooperative relation. A posed betweenthe sections for insuring againstleakage. Formed on the upper section 6 is a downwardly directed integraldischarge nozzle the chamber i2.

' define a valve seat, which, for

s a body, which plunger 2! is formed with'a concaveannula-rl'o ll,'saidlnozzle communicating "with" gin-upper valve chamber i2 which isformed midway ofsaid section 6;

The'section' soft-the. body 5 isconstrict'ed to define I'atubula rneckI3, and said neck is formed] with horiZontally -alined slots I '4; prineum the neck adj acent one of the slots horizontally 'alined mountinglugs l5, I

Ihe 'lowersection with-a lower valve'chamb'erlt, and sa'iid body isreduced to jdefine a mounting shoulder 'l'i and an externally threadedcoupling nipple -l 8. A pas sage l9 communicates'between thei'n'teriorofthe coupling'nipple and the lowervalve chainli it. Operatively mountedin tl1e-body B fis" valve element 28, said valveelement inclu anintegral plunger 2 Land astem Z-Z and a va ve disc 23. Morespecifically, by"refe"rfring'toFig ure 2 of the drawing'jitwill be seenthatit er surface 2 i which serves to deflect wate'r no ingupw'ardlythrough the body downwardly imi Water"will thus'befpre'vent'ed',

The lower end from escaping along the'neck l3.- v of the stemfisenlarged to define ashqulde 24 and a threaded portion25,'said threaded sreceiving the disc 23, and saiddisc being-held in 7 place by a nut 26'which is screwed on saidthre'ad ed portion 25. Formedin 'the'up'perendoijthe plunger i'i'o'i theelment 2015 a vertically-dis;

posed elongated slot 21, said slot hjavin glahflat bottom wall 28 'andasubstantially V-shap'edtop wall 29 forming-inclined bearing surfaces. 7,

'As' clearly seen in Figure 2, the element 20 is mounted within thesections 6 and I of the body with the plunger slidablyrdisposed withinthe neck [3 and with the slot 21 in alinement with the slots l4.' Thestem: 22 extendsdownwardly through the upper valve-chamber l2, throughthe nipple 9 and into the lower chamber IS, the valve operating with thelower endof said nipple 9 to bedesignatedatfla p H Inorder to shift thevalve element 20, for opening and closing the valve, I provide anoperating lever 3| which extends through theslots i4, and

V the slot 21 and has one end pivotally-mou'nted gasket i0 is normallydis- 7 in the lugs l5 by means of a pin 32 The lever 3| has its other.end operatively connected with pose for this particular type of mountingwill be set forth hereinafter.

1 0f the body t formed,

convenience, will a ,and the valve disc 23 will gagement' with the seat30, with the result that tankgthe plunger .2 I

will be prevented. Moreover,

As best seen in Figures 1 and 2 of the drawing, a refilling tube isemployed. This refilling .tube is indicated at 35 and is formed with athreaded lower end 36, said threaded lower end being screwed into thenozzle I I near the junction of the upper surface thereof with the neck13.

The operation of my improved float valve will now be briefly set forth.After the device has been mounted in the tank I, as shown in Figure 1,and the .float 33 has been connected with the lever 3| by means 01 thearm 34 and'the nipple [8 has been connected with a supply pipe, such asthe pipe 35', the valve is ready for use; When the tank is empty, on thebottom wall tion, the lever 3| will be in loweredposition and the floatwill, of course, rest' 4 of said tank. In this posi-q It has been foundthat, in view of the fact that the loose mounting of the valve plungerpermits the float to open the valve instantly on a, downward stroke ofthe plunger and water to close said valve instantly on the upward strokethereof, undue wear on the valve disc 23 will b avoided.

It is believed that the construction and operation of my improved floatvalve will now be thoroughly understood.

Having thus described the invention, what is claimed asnewis:

A float valve comprising a body having upper and lower sections, theupper section being hollow to provide an upper valve chamber and havtheplunger 2| of the element will bein. its

II into the tank. When'the water reaches the level shown in dotted linesin Figure -l,- the will have shifted the arm 34 and'the lever itsuppermost position.

plunger 2| will also be in float 3 I to In: this position, the its,uppermost position be in tight closing en the supply ofwaterto the-tankwill be shut oil:

-When' the tank is emptied by flushing, the float will, of course, againreturn tothe bottom of said tank. It :is particularly desiredtoemphasize that, inasmuch a'sthe lever 3| is mounted loosely in the slot21, free movementof the plunger 2|, either to openor closed position,will bepermitted.

Thus, when thefioat oves to the b'ottomof the will instantaneously droptor shifting'the disc-23 out of engagementwith 4 the seat for, openingthe valve and admitting water to the tank. In other words, .due'tothefact that the lever 3| is loosely mounted within the slot 21 of theplunger fl, danger of sticking a further advantage for-,the loosemounting of the lever 3| within .the slot 21 is that-water pressure willbe allowed to, assistin effecting closing of the valve andconsequently-shutting oifwater to thetank.

Attention-is directed to-the fact that, inasmuch as the valve element 20is loosely mounted within the body 5, said valve will be permittedtooperate noiselessly. V v I,

lowermost position within the ne'ck 1350f the.

inglits upper portion constricted to form a neck extending upwardly fromthe valve chamber, a spout extending laterally from said chamber, an

externally threaded :nipple extending downwardly from the valve chamberand formed with avalve seat at its lower end, the lowersection beinghollowv to form allower valve chamber formed with a lower inlet andhaving its upper end screwed upon the threaded nipple of the uppersection, a solid plunger slidable longitudinally in said neck and havingits upper portion formed with a transverse slot r-egistering withopposed slots in the neck and its lower portion cutaway to form areduced stem extending downwardly through the upper ;chamber and nippleand into the lower chamber, the slot of the plunger having a flat lower.wall and a substantially V-shaped upper wall, a floatlever pivotedratoneend to the neck and passing through the registering slots of .the

neck and the plunger and formed with arcuate upper and lower edgesiorengaging-the upper and lowerlwalls of the slot in the plunger andshifting the plunger longitudinally through the neck, the lower end iaceofthe plunger at its junction with the stem being concave to form anannular recess entirely surrounding :the upper end of the stem anddisposed within and spaced from the side walls of the-upper chamber, avalve disc fitting about the lower ,end portion of the stem within thelower chamber, and a nut threaded upon the lower end of the stem andengaging the valve disc to removabl-y hold the disc in place in positionfor seating against the valve seat when I the plunger and the stem areshifted upwardly y the float lever.

STEVE LIMARTI-N.

